We place the zero point of gravitational potential energy at a distance r of infinity. This makes all values of the gravitational potential energy negative. It turns out that it makes sense to do this because as the distance r becomes large, the gravitational force tends rapidly towards zero.
Объяснение:
We place the zero point of gravitational potential energy at a distance r of infinity. This makes all values of the gravitational potential energy negative. It turns out that it makes sense to do this because as the distance r becomes large, the gravitational force tends rapidly towards zero.